The Latest: Lucie Safarova on course for Grand Slam double after reaching doubles final

Lucie Safarova of the Czech Republic celebrates winning her semifinal match of the French Open tennis tournament against Serbia's Ana Ivanovic in two sets, 7-5, 7-5, at the Roland Garros stadium, in Paris, France, Thursday, June 4, 2015. (AP Photo/Francois Mori)
(The Associated Press)

France's Jo-Wilfried Tsonga leans on a fridge to stretch his shoulder muscle in the semifinal match of the French Open tennis tournament against Switzerland's Stan Wawrinka at the Roland Garros stadium, in Paris, France, Friday, June 5, 2015. (AP Photo/David Vincent)
(The Associated Press)

A ball-boy holds balls for the service in the semifinal match of the French Open tennis tournament between Serena Williams of the U.S. and Timea Bacsinszky of Switzerland at the Roland Garros stadium, in Paris, France, Thursday, June 4, 2015. (AP Photo/Christophe Ena)
(The Associated Press)

Lucie Safarova of the Czech Republic remains on course to become the first woman in 15 years to win the singles and doubles at the French Open.

Safarova teamed with Bethanie Mattek-Sands of the United States to beat Andrea Hlavackova and Lucie Hradecka of the Czech Republic, 6-2, 5-7, 6-4 to reach the doubles final.

Safarova plays top-ranked Serena Williams in the singles final on Saturday.

The last to do the double was Frenchwoman Mary Pierce in 2000, when she played alongside Martina Hingis.

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3:30 p.m.

Serena Williams is skipping practice the day before the French Open women's final, and will not conduct a news conference, either.

She meets first-time finalist Lucie Safarova on Saturday.

Williams has been sick for several days, and was listless in the heat during her semifinal victory on Thursday, then did not hold a post-match news conference, saying she went to the tournament doctor.

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3:15 p.m.

With temperatures reaching 90 degrees (32 C) on Court Chartrier for the French Open men's semifinal, Jo-Wilfried Tsonga found a novel way to keep cool.

He laid on a fridge to sooth his shoulder muscle.

He and Stan Wawrinka are into the third set, at one set all, with both looking to reach their second Grand Slam final.

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2:53 p.m.

Jo-Wilfried Tsonga won the second set 7-6 (1) against Stanislas Wawrinka to level the set score in their French Open semifinal.

The fans on Court Chartrier broke out into loud chants of "Tsonga, Tsonga" after the Frenchman broke back in the set and held to love to lead 5-4.

With his eyes closed, Tsonga appeared to be meditating at the changeover.

In high temperatures, Wawrinka won the first set 6-3.

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2:05 p.m.

For the first time at Roland Garros, there will be an all-American final in the French Open boys tournament.

Second-seeded Taylor Fritz reached the final Friday with a 6-1, 6-2 win over Corentin Denolly and will take on Tommy Paul for the title.